Social Security Administration disability criteria based on pulmonary function tests

Height without shoes (centimeters)	Height without shoes (inches)	FEV₁ equal to or less than (L, BTPS)	FVC equal to or less than (L, BTPS)
154 or less	60 or less	1.05	1.25
155 to 160	61 to 63	1.15	1.35
161 to 165	64 to 65	1.25	1.45
166 to 170	66 to 67	1.35	1.55
171 to 175	68 to 69	1.45	1.65
176 to 180	70 to 71	1.55	1.75
181 or more	72 or more	1.65	1.85

FEV₁: forced expiratory volume in one second; FVC: forced vital capacity; BTPS: body temperature, ambient pressure, saturated (with water vapor).

Adapted from: Disability evaluation under Social Security, US Department of Health and Human Services http://www.ssa.gov/disability/professionals/bluebook/3.00-Respiratory-Adult.htm#3_01 (Accessed on February 4, 2014).

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